The source craters of the martian meteorites: Implications for the igneous evolution of Mars.

Approximately 200 meteorites come from ~10 impact events on the surface of Mars, yet their pre-ejection locations are largely unknown. Here, we combine the results of diverse sets of observations and modeling to constrain the source craters for several groups of martian meteorites. We compute that ejection-paired groups of meteorites are derived from lava flows within the top 26 m of the surface.

Implementation of an Outpatient Violence Intervention Program to Increase Service Uptake.

Challenges in participant recruitment and retention limit the effectiveness of hospital-based violence intervention programs (HVIPs). This study aimed to determine if an outpatient violence intervention program (VIP) could be integrated into a trauma clinic and increase uptake of violence prevention services. Patients previously hospitalized for intent-to-harm being seen for outpatient follow-up were eligible.